Xenex Disinfection Services, a US-based developer of light-based technology for hospital room disinfection, raised $38m in funding on Friday from investors including life sciences company Malin Corporation.
The round was led by Essex Woodlands, with additional participation by financial services firm Piper Jaffray Merchant Banking and Tectonic Ventures.
Founded in 2009, Xenex produces robots that use pulsed xenon ultraviolet light to destroy microscopic germs that can escape manual cleaning and lead to almost 300 patient deaths every year in the US alone.
The money will support increased sales activities, boost product development and scientific research and drive international expansion efforts.
Xenex previously secured $25m in a 2015 funding round that featured life sciences company Brandon Point Industries. Battery Ventures, Targeted Technology Fund II and RK Ventures also participated, having previously backed Xenex’s $11.3m round in 2013.
Malin Corporation was identified as an existing shareholder in Xenex’s latest press release, though details about its previous involvement could not be confirmed.